Researchers at Dartmouth College have developed a metric to apply to altered images to address how much Photoshopping a picture has undergone, in an effort to provide more truth in advertising and prevent unhealthy body image issues. Hey, I'm 5'4", 240-lbs and cool with that.

Farid and Eric Kee, a Ph.D student in computer science at Dartmouth, published their research this week in the journal National Academy of Sciences.

The tool would work on a rating scale of one to five. Farid and Kee created a base metric by analyzing and statistically measuring results from various before-and-after photos. They then correlated these findings with a study group that was asked to rank the amount of photo alteration on a scale of one (very similar) to five (very different). This numbered metric could then be algorithmically applied to photos of, say, celebrities and models to reveal just how much photo-manipulation took place.

You want to know how much photo-manipulation takes place? I'll tell you -- TONS. It's true, the last unaltered celebrity photo was actually taken in the 90's. THE 1890's. It was sepia-toned.